Licensed HVAC · CSLB #1143205
About Fuse Service — licensed HVAC in the East Bay & Marin.
Fuse Service is a licensed HVAC contractor — CSLB #1143205, C-20 — working across Alameda, Contra Costa and Marin counties. We install and repair heating and cooling systems and repair home appliances. Twelve people, four locations, open 7am–7pm every day.
At a glance
| License | CSLB #1143205, C-20 (HVAC) |
| Founded | 2017 |
| Team | 12 people |
| Locations | Berkeley · Richmond · Walnut Creek · Danville |
| Service area | Alameda, Contra Costa and Marin counties |
| Hours | 7am–7pm, every day |
| Service call | $59, credited to the repair if you approve it |
| Estimates | Free on new system installations |
| Warranty | Up to 12 years |
| Installs | Daikin and Goodman mainly, Mitsubishi on request |
| Repairs | All HVAC brands; refrigerators, freezers, ovens, ranges, dryers |
| Not offered | Boilers and hydronic heating, air-to-water heat pumps, plumbing, dishwashers, microwaves, washing machines |
| Phone | (925) 302-2429 |
What we do
Three lines of work, all under one C-20 license.
HVAC installation
Heat pumps, ductless mini splits, central AC, furnaces and ductwork. Estimates on new systems are free, and we help with rebates and financing.
HVAC installation →
HVAC repair
Furnaces, heat pumps, AC and air ducts, every major brand — including systems we didn’t install. The service call is $59 and goes toward the repair if you approve it.
Heat pump repair →
Appliance repair
Refrigerators, freezers, ovens, ranges, cooktops and dryers, plus wine coolers and ice makers. We don’t service dishwashers, microwaves or washing machines.
Appliance repair →
How we work
Fuse Service has been working in the East Bay since 2017. Twelve people across four locations — Berkeley, Richmond, Walnut Creek and Danville.
A repair visit starts with a $59 service call. A technician diagnoses the system and tells you what the repair costs; if you go ahead, the $59 comes off the price. Estimates on new system installations are free.
We install Daikin and Goodman most of the time, and Mitsubishi when a job calls for it. Equipment warranties run up to 12 years. Financing is available, and we’ll tell you which heat pump and HVAC rebates your address qualifies for.
Our locations
Four offices across the East Bay. Phone numbers and booking are on the contacts page.
What customers say
Ratings are kept per location, so you can check the office nearest you.
| Source | Rating | Reviews |
|---|---|---|
| Google — Berkeley | 4.9 | 402 |
| Google — Richmond | 4.9 | 139 |
| Google — Walnut Creek | 4.9 | 59 |
| Google — Danville | 5.0 | 33 |
| Yelp | 4.9 | 184 |
As of October 2026.
Our work
Where we work
We serve the East Bay and Marin County — Alameda, Contra Costa and Marin counties, from Berkeley and Oakland through Walnut Creek and Danville up to Novato. San Francisco and the South Bay are not in our area.
Questions
Is Fuse Service licensed?
Yes. Fuse Service holds California contractor license CSLB #1143205, classification C-20 (heating, ventilating and air conditioning).
What are your hours?
7am to 7pm, every day.
How much is a service call?
$59. If you approve the repair, the $59 is credited toward its cost. Estimates on new system installations are free.
Which areas do you serve?
Alameda, Contra Costa and Marin counties — the East Bay and Marin. San Francisco and the South Bay are not in our service area.
Which brands do you install and repair?
We install Daikin and Goodman mainly, and Mitsubishi on request. We repair all major HVAC brands, including systems installed by someone else.
Which appliances do you repair?
Refrigerators, freezers, ovens, ranges, cooktops, dryers, wine coolers and ice makers. We do not service dishwashers, microwaves or washing machines.
How long is the warranty?
Up to 12 years, depending on the equipment and the manufacturer’s terms.
What do you not work on?
We hold a C-20 licence, which covers heating and air conditioning. We do not do plumbing, boilers, hydronic heating or air-to-water heat pumps. On the appliance side we do not service dishwashers, microwaves or washing machines.